For the equation y = 9x -3 determine whether the following points are solutions Is (-8,-75) a solution of the equation? Is (7,-2) a solution of the equation?

1 Answer
Mark D.
Aug 4, 2018

Put x=-8x=−8 into the equation
=> y=-72-3 => y=-75⇒y=−72−3⇒y=−75 so (-8,-75) is a solution.

Put x=7x=7 into the equation
=> y=63-3 => y=60⇒y=63−3⇒y=60 so (7,-2) is not a solution

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